Properties of the Number 18162

Eighteen Thousand One Hundred Sixty-Two

Basics

Value: 18161 → 18162 → 18163

Parity: even

Prime: No

Previous Prime: 18149

Next Prime: 18169

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 1009

Divisors: 1, 2, 3, 6, 9, 18, 1009, 2018, 3027, 6054

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011011110010

Octal: 43362

Duodecimal: A616

Hexadecimal: 46f2

Square: 329858244

Square Root: 134.7664646712972

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of integer partitions of n with an alternating permutation. A345170

a(n) is the concatenation of n and 9n. A9474

Numbers k such that ∑_i=1..k i⁶ divides ∏_i=1..k i⁶. A166606

Number of ordered triples (w,x,y) with all terms in {1,...,n} and w²<=x²+y². A211634

First differences of A263276; length of n-th run of terms of same parity in A259934. A263277

a(n) = length of n-th run of even terms in A259934. A263278

Number of set partitions of [n] such that for each block all absolute differences between consecutive elements are <= six. A287278

a(n) = 3·n³ + 2·n² + n. A67389

Distinct perimeter lengths of polygons with regularly spaced vertices. A7874

Total number of parts of multiplicity 6 in all partitions of n. A222706